* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
div {
  width: 110px;
  height: 210px;
  background-color: cyan;
  color: 16px;
}
div::after {
  content: "";
}
div a:hover {
  background-color: red;
}
p,
section {
  border: 5px solid red;
}
.hh3 {
  color: red;
}
.hh4 {
  background-color: blue;
}
.hh5 {
  color: red;
  background-color: blue;
}
